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Test Code CSF Pr CSF, Protein

Aliases

CSF Total Protein

Patient Preparation

No special patient preparation required

Special Collection Instructions

Transport to lab as soon as possible

Collection Method

Lumbar puncture or CSF shunt

Minimum Volume

  • Adults: 0.5 ml
  • Pediatric: 0.4 ml

Container

Sterile CSF Tube

Preferred Specimen

Sterile CSF Tube

Acceptable Specimens

  • Sterile CSF Tube
  • Sterile Urine Cup

Reference or Target Ranges

15 – 45 mg/dL

Reportable Units

mg/dL

Critical Value

0 – 1 year >300 mg/dL
>1 year >150 mg/dL

Reasons for Rejection

 


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Hemolysis Threshold 500 mg/dL
Icterus Threshold 20 mg/dL
Lipemia Threshold 500mg/dL
Other QNS, contaminated, improperly Labeled, improper specimen type

Specimen Stability

 


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Ambient 24 hours
Refrigerated (4°C to 8°C) 6 days
Frozen(-40°C to 0°C) 1 year

Performance Information

 


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Days and Time Performed 24/7
Expected Turn Around Time Stat: 1 hour
Routine: 4 hours
Stat Availabilty Yes
Performing Bench UH Chemistry
Methodology/Method Description Siemens Atellica - Colorimetric Assay

CPT Codes

84157